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Style width Property

Style Object

Definition and Usage

The width property sets or returns the width an element.

The width property has effect only on block-level elements or on elements with absolute or fixed position. The overflowing content can be manipulated with the overflow property.

Syntax

Set the width property:

Object.style.width="auto|length|%|inherit"

Return the width property:

Object.style.width

Value	Description
auto	The browser sets the width. This is default
length	Defines the width in length units
%	Defines the width in % of the parent element
inherit	The value of the width property is inherited from parent element

Browser Support

The width property is supported in all major browsers.

Note: The value "inherit" is not supported in IE7 and earlier. IE8 requires a !DOCTYPE. IE9 supports "inherit".

Example

Set the width of a button:

<html>
<head>
<script>
function displayResult()
{
document.getElementById("b1").style.width="300px";
}
</script>
</head>
<body>

<input type="button" id="b1" onclick="displayResult()" value="Change width">

</body>
</html>

Try it yourself »

Style Object